CN1090795C - Recording and/or reproducing apparatus for recording medium - Google Patents

Recording and/or reproducing apparatus for recording medium Download PDF

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Publication number
CN1090795C
CN1090795C CN95107142A CN95107142A CN1090795C CN 1090795 C CN1090795 C CN 1090795C CN 95107142 A CN95107142 A CN 95107142A CN 95107142 A CN95107142 A CN 95107142A CN 1090795 C CN1090795 C CN 1090795C
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China
Prior art keywords
data
recording medium
display
record
recording
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Expired - Fee Related
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CN95107142A
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Chinese (zh)
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CN1144962A (en
Inventor
松本吉生
府中克树
胜木信二
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Sony Corp
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Sony Corp
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Publication of CN1144962A publication Critical patent/CN1144962A/en
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    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/34Indicating arrangements 
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/02Editing, e.g. varying the order of information signals recorded on, or reproduced from, record carriers
    • G11B27/031Electronic editing of digitised analogue information signals, e.g. audio or video signals
    • G11B27/034Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/11Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information not detectable on the record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327Table of contents
    • G11B27/329Table of contents on a disc [VTOC]
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/36Monitoring, i.e. supervising the progress of recording or reproducing
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/10Indicating arrangements; Warning arrangements
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007Time or data compression or expansion
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10527Audio or video recording; Data buffering arrangements
    • G11B2020/10537Audio or video recording
    • G11B2020/10592Audio or video recording specifically adapted for recording or reproducing multichannel signals
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/21Disc-shaped record carriers characterised in that the disc is of read-only, rewritable, or recordable type
    • G11B2220/211Discs having both read-only and rewritable or recordable areas containing application data; Partial ROM media
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2525Magneto-optical [MO] discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/20Disc-shaped record carriers
    • G11B2220/25Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2525Magneto-optical [MO] discs
    • G11B2220/2529Mini-discs
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00Record carriers by type
    • G11B2220/60Solid state media
    • G11B2220/65Solid state media wherein solid state memory is used for storing indexing information or metadata

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

A recording and/or reproducing apparatus for a recording medium such as an optical disc includes a head, a recording and/or reproduction control unit, an arithmetic operating unit and a display control unit. On the recording medium, management data for controlling recording of data recorded on a data recording area or the operation of recording and/or reproducing recorded data, and address data have been recorded. The head performs recording of data on the recording medium or reading out of recorded data therefrom. The recording and/or reproduction control unit records data on the recording medium discretely by the head, and reads out data discretely recorded on the recording medium as continuous data on the basis of the management data. The arithmetic operating unit arithmetically computes data representative of a reproduction position of data recorded in the data recording area of the recording medium. The display control unit allows the display unit to display the entire recording capacity of the recording area of the recording medium on the basis of the management data read out by the head, and allows the display means to display the reproduction position on the basis of data representative of a position calculated by the arithmetic operating unit.

Description

The record of recording medium and/or replay device
The present invention relates to a kind of record and/or replay device of recording medium.More particularly, the present invention relates to a kind of record and/or replay device that has the recording medium of display unit.
For example, as can audio playback, speech or other similar things etc., that has known has CD and a magneto-optic disk replay device, as compact disk (CD), is writing down the sound signal with digital signal form thereon.
In recent years, known disc recording and/or replay device, the user can be recorded in the thing of voice data and so on the magneto-optic disk as recording medium with it.Such disc recording and/or replay device are provided with and are writing down voice data, the zone of the data of tone or other things of the like kind and provide management not to be recorded the data field (user's catalogue is called " U-TOC " hereinafter) of data in zone.For example, according to record, editor, the operation of erasure or other similar things etc. rewrites management data.
For example, in some voice data of record, the zone that record and/or replay device are not recorded on dish according to U-TOC search, and the audio data recording that will be input to this device is not recorded on the zone described.In the audio playback data, the zone that record and/or replay device identification are being write down the voice data (letter mark) that will be reset thereon according to U-TOC, and before carrying out replay operations, visit this zone.
Recordable disc type medium such as magneto-optic disk is compared with the banding pattern recording medium such as DAT (digital audiotape) or minicartridge, and random access extremely easily can be provided.This just makes it there is no need inside circumference from dish to the neighboring, promptly carries out record from the first letter mark to n letter mark according to correct order.In other words, go up on the actual dispersed position even each audio frequency is recorded in dish, according to believing the management of the address of mark at first letter mark to the n that is writing down each audio frequency, this audio frequency can be reset in the correct order.
In addition, above-mentioned recordable media makes and there is no need record always, for example, at a continuous part (here, described part refers to writing down the in fact part of continuous data) on one the letter mark (voice data), even and on the part that is separated out discretely on many coiling, writing down voice data discretely, can not be subjected to any problem.
Especially, in record and/or replay device, in case the data storage that will read from magneto-optic disk with two-forty is memory buffer, then, be subjected to from this memory buffer, reading this data with low velocity, even because the access between each several part before demodulation process is audio playback signal in these data, temporarily interrupted the sense data from magneto-optic disk, the signal of being reset can not have output interruptedly yet.
Therefore, if repeat the record within the each several part and/or replay operations and two-forty accessing operation (finish the read access operation within time cycle repeatably be since between the writing rate of memory buffer and read-out speed difference produced that memory data output caused), even the letter mark of an audio frequency is divided into the mass part that in fact is spaced, the record of this audio frequency and/or replay operations can not be subjected to any problem yet.
For example, as shown in Figure 1, many audio frequency are recorded on the part in fact continuously, and its mode is that first audio frequency is recorded in part M 1Go up with second audio frequency and be recorded in part M 2On.Similarly, each audio frequency can be recorded on this dish, and the result is separated into mass part, as for the 4th audio frequency and the five notes of traditional Chinese music frequently respectively by part M 4 (1)To M 4 (4)And M 5 (1)To M 5 (2)Shown in like that.Fig. 1 schematic example that drawn simply, in fact by many by several to a hundreds of letter mark or believe that more mark forms the situation of a part.
When the operation of writing down or erase audio frequency with respect to magneto-optic disk is repeated, cause the white space that on the letter mark, produces brokenly in the execution time of record audio or in the difference aspect the execution time of erasing audio frequency.Yet, the execution of the recording operation of Fen Liing like this, make compare the longer audio frequency of being erased of audio frequency can be on being recorded by utilizing its section of erasing.Because the record that repeats/erase operation, avoided the appearance of useless data recording area.The thing that is write down not necessarily is limited to " audio frequency ", and comprises anything that belongs to sound signal.Therefore, in this manual, with the form record audio of the explanation made hypothesis with the data (letter mark) of a unit that continuous content is arranged.
In magneto-optic disk, during recording operation, in the part of the many continuous not posting fields of visit, recording operation must be uninterrupted.During replay operations, must visit each several part in such a way, make an audio frequency quilt continuously, correctly record.For with each several part (for example, the M within the audio frequency 4 (1)To M 4 (4)) the necessary data that link together and posting field data represented not, require to satisfy above-mentioned condition, with aforesaid each recording operation or erase the form of the U-TOC information that operation can be reproduced, be recorded on the magneto-optic disk.By reading U-TOC information, carry out the accessing operation of head, controlling recording and/or replay device are so that realize the recording/reproducing operation rightly.
The record data on disk are formed in bunch unit CL (=36 sector) unit by the main-data area of the sub data area that comprises four sectors (1 sector=2352 byte) and 32 sectors, and during recording operation bunch of tailor-made minimum unit of quilt.One bunch is equivalent to 2-3 letter mark.Each sector record the address.
The sub data area of four sectors is as subdata, join domain or other similar things.The TOC data, voice data or other things of the like kind are recorded on the main-data area of 32 sectors.
This sector further is subdivided into many sound groups in such a way, makes two sectors be divided into 11 sound groups.Within this sound group, the data of 512 sample values are separated into L passage and R passage, and are recorded then.A sound group has the amount of the voice data of the time cycle that is equivalent to 11.6 milliseconds.
In the above-mentioned playback of passing through such as the tune of the disc-shape recoding medium of magneto-optic disk, present replay position is displayed on the display unit of replay device in the mode of time shaft.For example, as such display technology, known is just reset now the letter mark number of letter mark and to this letter mark playback elapsed time with showing branch/second.Similarly, known is that this display mode is changed the remaining time period of playback that will be reset the letter mark into showing.And this display mode is changed and be shows playback elapsed time section, reset the remaining time period or with summary journal time period of magneto-optic disk have the thing of a class.
In addition, with the form of voice data and so on audio recording under the situation on the disc-shape recoding medium, known display system is, in the situation of record waiting status and so on, and record letter mark number, for example, the time period of being write down, recordable excess time, section etc. was according to the U-TOC information calculations and show, during recording operation, to be recorded the letter mark number of letter mark now, the record position on this letter mark etc. is with demonstration branchs/second.
Yet above-mentioned display system has a problem, for example, because only show certain letter mark elapsed time section is shown by numeral, this just is difficult to make the user grasp at once that on the magneto-optic disk as disc-shape recoding medium, replay position or record position are really wherein.
Specifically, in the above-mentioned record and/or replay device that utilizes memory buffer, be well known that a kind of register system that is not writing down the not posting field (clear area) of audio frequency of searching for automatically therein by data mode, and a kind of past data is therein erased from the part that recording operation begins, promptly, the audio frequency in past with use closely knit cartridge in identical mode erased, and and new audio frequency record so-called regenerative recording system thereon just.Yet, passing through the regenerative recording system under the situation of the enterprising line item of magneto-optic disk, if the user relies on the demonstration of only being undertaken by the above-mentioned position of numeral demonstration, it just can not in time be grasped on whole magneto-optic disk so, the position of start-of-record and is easy to feel to be not easy determine that present record start position is in fact consistent or inconsistent with the desirable position of user wherein.
In addition, a kind of above-mentioned record that utilizes memory buffer and/or replay device of pattern are provided with the function of restarting.The function of restarting will be designed to, even stopped replay operations or cut off power supply owing to operating stop key or power key, only keeps packing into and not discharging with regard to magneto-optic disk, will store and give over to restart point to last playback stop position.After this, for example, in that energized is to reset or to write down under the situation of (at this moment, being above-mentioned rewriting system) once more, this restart point can be decided to be the recording/reproducing starting position.In the case, similarly, on whole magneto-optic disk, reset or the position of writing down is difficult to instant the grasp, all the more so for the situation of the position display that only shows with numeral especially.
European patent application EP 0571191-A2 has proposed a kind of record and/or replay device, is used to show the reproduction time and the remaining time that can write down according to the management information of recording medium of the total reproduction time of whole melodies, each melody.But, this document does not advise that with the dish that record and/or replay device come the district office to use be ROM (read-only storage) type dish (PIT dish) or RAM (random access memory) type dish (letter mark dish), if used dish is a ROM type dish, then this record and/or replay device show current play position; If RAM type dish, but then show current play position, current record position posting field and one of posting field.
European patent application EP 0571147-A2 has proposed the method for calculating dial replay device reproduction time, but this document does not relate to and how to address the above problem.
Therefore the object of the present invention is to provide a kind of above record and/or replay device of mentioning the recording medium of problem that solve.
According to the present invention, a kind of record and/or replay device of recording medium are provided, control writing down the record that is used for being recorded in the data on the data recording area on the recording medium, perhaps the controlling recording and/or the management data of recorded operation of resetting.This device comprises a shaven head, an arithmetic operation unit, a display unit and an indicative control unit.This shaven head is finished record or recorded read of data on recording medium.This arithmetic operation unit utilizes the management data of reading from recording medium by this head, and the data that representative are recorded in the replay position of the data on the data recording area of recording medium are carried out arithmetical operation.This indicative control unit according to the management data of being read by shaven head, is realized the demonstration of whole recording capacity on display of the posting field of expression recording medium.This indicative control unit according to the data of expression by the resulting position of arithmetical operation of arithmetic operation unit, also is implemented in the position display on the display unit.
According to the present invention, a kind of record and/or replay device of recording medium are provided, on this recording medium, except that address date, also writing down the record that is used for being recorded in the data on the data recording area and controlling, perhaps to the management data that writes down and/or the recorded operation of resetting is controlled.This device comprises a shaven head, record and/or playback control module, an arithmetic operation unit, a display unit and an indicative control unit.This head is finished record or recorded read of data on recording medium.This record and/or playback control module according to management data, are recorded in data on the recording medium discretely by head, and read the data that are recorded in discretely on the recording medium with the form of continuous data.This arithmetic operation unit utilizes the management data of reading from recording medium through head, and the data that expression are recorded in the replay position of the data on the data recording area of recording medium are carried out arithmetical operation.This indicative control unit according to the management data of being read by shaven head, is finished the demonstration of whole recording capacity on display unit of the posting field of expression recording medium.This indicative control unit according to the data of expression by the resulting position of arithmetical operation of arithmetic operation unit, is also finished the position display on display unit.
According to the present invention, the user is by the position display on display unit, by his eyes, can easily determine, the data of reading from the recording medium of charging apparatus are on which position that is in the data recording area of recording medium, and perhaps to fasten in the pass with respect to the tip position of data recording area be to be on which position to these data.In the data that on the recording medium of charging apparatus, write down, the user is by the position display on display unit, by his eyes, can easily determine, the data of reading from the recording medium of charging apparatus are on the position where that is in the data recording area of recording medium, and perhaps to fasten in the pass with respect to the tip position of data recording area be to be on which position to these data.Similarly, the user is shown by the whole recording capacity to recording medium on display unit, with his eyes, can easily determine anything of above-mentioned demonstration.
Above and further purpose of the present invention, feature and advantage from accompanying drawing and following detailed description, will more completely display.
Fig. 1 is the illustrative figure of the record format of a dish of expression;
Fig. 2 is the illustrative figure of structure of the sector of this dish of expression;
Fig. 3 is the block scheme of expression according to the main part of the record of embodiments of the present invention and/or replay device;
Fig. 4 is the figure of expression according to the display unit of the record of this working of an invention mode and/or replay device;
Fig. 5 is illustrated in the illustrative figure that dish is gone up the P-TOC sector;
Fig. 6 is illustrated in the illustrative figure that dish is gone up the U-TOC sector;
Fig. 7 is illustrated in the illustrative figure that dish is gone up the structure of U-TOC sector chain;
Fig. 8 (a)-8 (e) is the illustrative figure of expression according to the display operation of this working of an invention mode position indicator pointer during replay operations;
Fig. 9 (a)-9 (d) is the illustrative figure of expression according to the display operation of this working of an invention mode position indicator pointer during recording operation;
Figure 10 is the step of current position and recording capacity is calculated in expression according to this working of an invention mode an illustrative figure;
Figure 11 is the process flow diagram of expression according to the process of the display of this working of an invention mode control position pointer;
Figure 12 (a)-12 (d) is the illustrative figure of expression according to another display operation of this working of an invention mode position indicator pointer during replay operations;
Figure 13 (a)-13 (f) is the illustrative figure of expression according to another display operation of this working of an invention mode position indicator pointer during recording operation;
Figure 14 (a)-14 (b) is the illustrative figure of expression according to the another display operation of this working of an invention mode;
Figure 15 (a)-15 (b) is that expression is according to this working of an invention mode illustrative figure of a display operation again; With
Figure 16 (a)-16 (b) is that expression is according to this working of an invention mode illustrative figure of a display operation again.
Hereinafter, with reference to figure 3-16, will record and/or the replay device according to the recording medium of embodiments of the present invention be described in detail.In following described each embodiment, utilize magneto-optic disk will to describe according to following order as the record and/or the replay device of recording medium.
1. the record and/or the structure of replay device
2.P-TOC sector
3.U-TOC sector
4. the example of the display operation of position indicator pointer
5. the processing operation that position indicator pointer is shown
6. the example of the various modifications of the display operation of position indicator pointer (the 1. record and/or the structure of replay device)
Fig. 3 is the block scheme of expression according to the major part of embodiments of the present invention record and/or replay device.
In Fig. 3, reference number 1 refers to thereon and is writing down, and perhaps will write down the magneto-optic disk of voice data.This magneto-optic disk 1 is rotatably driven by Spindle Motor 2.Reference number 3 refers to shaven head, be used for recording/reproducing operating period with laser beam irradiation on magneto-optic disk 1.This shaven head 3 penetrates high-intensity light beam, be used for during recording operation each record letter mark being heated to Curie temperature, and ejaculation has more low intensive light beam during replay operations, is used for detecting data according to gram ear (Kerr) effect from folded light beam.
For this reason, at shaven head laser diode as light source is housed on 3, polarising beam splitter is arranged, the optical system of object lens 3a or the like and being used to receives the photodetector with the detection of reflected light beam.These object lens 3a will install to such an extent that it can along dish radially promptly along the direction of following the tracks of with along object lens 3a and dish being come in contact or discontiguous direction, promptly along focus direction, be moved by driver 4.
Reference number 6 expression magnetic heads are used for the vertical magnetic field by providing data-modulated is added to magneto-optic disk.This magnetic head 6 will be provided with so that relative with shaven head 3 by magneto-optic disk 1.This shaven head 3 and magnetic head 6 are by the radially change position of thread mechanism device along dish.
During replay operations, the photodetector of shaven head 3 receives by magneto-optic disk 1 beam reflected, and output signal is added on the RF amplifier 7.7 pairs of output signals that provided by photodetector of this RF amplifier are handled, produce and isolate the RF signal, tracking error signal, focus error signal, absolute location information (being recorded in absolute location information on the magneto-optic disk 1) with the form of preposition group (swing group), address information focuses on monitor signal etc.The RF signal that is produced offers encoder/decoder 8.Tracking error signal and focus error signal are given servo circuit 9, and address information is given address decoder 10.In addition, absolute location information and focus on monitor signal and give, for example, the system controller 11 that constitutes by microcomputer.
This servo circuit 9, according to tracking error signal, focus error signal, and, seek the rotating speed detection information of instruction and Spindle Motor 2 from the job-hopping of system controller 11 instruction, or the like, produce all servo drive signals.So the different servo drive signal that produces is given screw thread mechanical hook-up 5, to realize focus control and tracking Control.And Spindle Motor 2 drives with Constant Angular Velocity (CAV) or constant linear velocity (CLV) rotation.
After being subjected to EFM modulation and the decoding processing such as CIRC by encoder/decoder 8, the RF signal is by in the Memory Controller 12 write-once memory buffer 13.Is to carry out discontinuously with the speed of 1.41 megabit per seconds by shaven head 3 from magneto-optic disk 1 sense data with the data of resetting being carried out conversion from shaven head 3 to the system of memory buffer 13.
The data of write buffering memory 13 and are given encoder/decoder 14 so that the data of being reset are read with the timing of 0.3 megabit per second transmission.Be subjected to the processing of replay signal from buffering storer 13 data of reading, the decoding processing as being handled by the audio compression of encoder/decoder 14 is transformed to digital signal thus.
Be transformed to simulating signal from the digital signal of encoder/decoder 14 outputs by D/A transducer 15, and give artificial line output terminal 16A then, perhaps directly give digital output end 16D, be not transformed to simulating signal from the digital signal of encoder/decoder 14 outputs.
In this example, to the Writing/Reading of the data of memory buffer 13, be under the control of write pointer and read pointer, undertaken by assigned address.Write pointer (write address) is to increase with the timing of aforesaid 1.41 megabit per seconds, and read pointer (reading the address) to be timing with 0.3 megabit per second increase.As a result, cause a certain amount of data to be stored within the memory buffer 13 in the difference of reading bit rate and write between the bit rate.When the data within being stored in memory buffer 13 were filled its memory capacity, the increase of write pointer just stopped, and also was stopped by shaven head 3 operations from magneto-optic disk 1 read data.Because the increase of read pointer R is to carry out continuously, therefore just there is not output interruptedly from the simulating signal or the digital signal of output terminal 16A or output terminal 16D output.
After this, only the read operation from memory buffer 13 is continued, if and be engraved in memory data outputs in the memory buffer 13 at a time and become the amount that equals to be scheduled to or littler, data reading operation and because the increase of shaven head 3 write pointer restarts so, result data deposits in the memory buffer 13 again.
Like this, the acoustical signal of resetting through memory buffer 13 outputs.Even because, for example, disturbing, tracking servo breaks down, and this has just prevented the interruption of the audio frequency output of being reset.When data redundancy was within memory buffer 13, for example, by increasing correct tracing positional, that is, the visit of the position that tracking servo breaks down restarted reading of data.This makes replay operations to continue, and any interruption of the audio frequency that does not have to be reset output.In other words, the antivibration characteristic can be improved significantly.
In Fig. 3, from the address information of address decoder 10 outputs and the sub-code data of being followed by control operation, encoded device/demoder 8 is given system controller 11, is used for various control operations then.
In addition, from the bit clock signal that produces the recording/reproducing operation, and the lock detecting signal of PLL circuit that is illustrated in the monitor signal of the state that does not have frame synchronizing signal in the replay data (L-and R-passage) is also given system controller 11.
System controller 11 is exported the work of control signal SLP that is controlled at the work of laser diode in the shaven head 3 and the output of controlling laser diode and is not worked.The connection of laser diode control can be the output of the light beam of lower playback duration at the output energy of the light beam of laser diode radiation, and is to change between the output of light beam of higher writing time at the output energy of light beam.
In execution to magneto-optic disk 1 recording operation, through being connected to the voice-frequency cable of analog input end 17A, be connected to the audio frequency optical cable of digital input end 17D etc., give this device from another equipment with the analog or digital sound signal.
Digital signal is being input under the situation of digital input end 17D, digital signal is directly given encoder/decoder 14.From the simulated audio signal of analog input end 17A input, after being transformed to data-signal, give encoder/decoder 14 by A/D transducer 18.
In encoder/decoder 14, the digital signal of being imported is subjected to the audio compression encoding process.The record data that compressed by encoder/decoder 14 are by in the Memory Controller 12 write-once memory buffer 13.The numerical data that is stored in the memory buffer 13 is read by predetermined timing, gives encoder/decoder 8 then.Standing the coding such as CIRC, after the encoding process of EFM modulation etc., numerical data is given magnetic head drive circuit 21.
Magnetic head drive circuit 21 is given magnetic head 6 according to the record data that have been encoded with the magnetic head drive signal.In other words, the N utmost point or S utmost point vertical magnetic field are given magneto-optic disk 1 by magnetic head 6.In this case, system controller 11 is given shaven head 3 with control signal SLR, makes bare headed 3 radiation write down the light beam of energy.
Reference number 19 expressions have the operation inputting part part by the key of user's keying.This key comprises again to be broadcast, F.F., back-roll, AMS search, stops and the operating key of record etc., sets the operating key of various modes of operation, carries out the operating key of various editing and processing, or the like.
Reference number 20 expression, for example, the display unit of forming by liquid crystal display cells etc.This display unit 20 under the control of system controller 11, realizes that mode of operation, mode state, replay process time, record carry out the demonstration of time, letter mark number etc.The drawn object lesson of display unit 20 of Fig. 4 in this embodiment, demonstrates, for example, and the symbol indication MP of audio frequency name indication TNA, letter mark number indication TNO, playback or record the process time indication PT and expression mode of operation.In Fig. 4, the triangle that representative is reset is expressed as the symbol indication MP that represents mode of operation.Reference number 30 expression position indicator pointers, such as the sum in the data of the tune of disc recording and recording/reproducing position, it is a feature of present embodiment with the form indication of symbol.Position indicator pointer 30 will be described hereinafter.
In Fig. 3, to coiling in 1 executive logging/replay operations, be recorded in the supervisory signal on the dish 1, that is: P-TOC (prerecord TOC) and U-TOC, be read out, and system controller 11 is according to above-mentioned management information, and identification is recorded in the address of address of coiling the each several part on 1 or the each several part of being reset thereon.This management information is maintained in the memory buffer 13.For this reason, memory buffer 13 is divided into the buffer area of above-mentioned record data/replay data and preserves the zone of described management information therein.
In this embodiment, in system controller 11, be provided with S-RAM (static RAM (SRAM)) 11a.The design of this S-RAM 11a in order that, for example, on the time point that is illustrated in the operation stop key, the point data etc. of restarting of replay position in institute's sabot stores and keeps.
Each corresponding part of system controller 11 control, dish to be housed in the convenient device at 1 o'clock, by carrying out replay operations, read out in record have management information dish inside the above management information of circumferential edge, and this management information is stored in the memory buffer 13.At that time,, will be referred to be stored in the management information in the memory buffer 13 carrying out recording/reproducing when operation to coiling 1.
According to the record of the data of magneto-optic disk 1 or erase, the information of U-TOC is edited and write.System controller 11 is to each record/erase operation, editor is stored in the U-TOC information in the memory buffer 13, and according to that operation of writing U-TOC information again, system controller 11 with regularly predetermined, writes U-TOC information in the U-TOC zone of dish 1 equally again.(2.P-TOC sector)
At first, the P-TOC sector shown in Fig. 5 is described, carry out the management information of management of recording/reproducing operation coiling voice data on 1 except being used for this sector, and also the form with sector data is writing down the voice data sector.
But P-TOC information is the zone such as the posting field (recordable user's zone) of dish specifies, perhaps the information of U-TOC district management.At dish 1 is to have only under the situation of the CD of do resetting, with tangible recessed/protruding, that is, can manage by P-TOC as the audio frequency of the form record of the pit on the closely knit dish.
Fig. 5 represents the form of P-TOC.Fig. 5 has drawn in the P-TOC zone, for example, and a sector (sector 0) of the P-TOC information that on the zone on the circumferential edge of the inside of dish, is repeatedly writing down.Omitted the explanation of each sector of the back of sector 1 and P-TOC form.
There is a title data area in the sector of P-TOC (4 bytes * 588=2352 byte), and here, the nybble address of expression bunch address and sector address etc. is added to by on the synchronizing pattern of forming in a byte data of tip position place complete 0 or complete 1.The zone of P-TOC is represented by this title.
Utilization is equivalent to the sign of the ASCII character of symbol " MINI ", and ID is added on the predetermined address location of title back.
In turn, writing down in the data area the last audio number (last TNO) of dish-type, record energy, first audio number (TNO) of first audio frequency that write down, last audio frequency, the start address ROA that reads, power supply calibration region start address PCA, U-TOC start address USTA (data area of U-TOC sector 0 in Fig. 6 will illustrate below) but the start address RSTA of posting field etc.
In turn, the corresponding table of data segment that indication has list index (P-TNO1 to P-TNO255) is set, make record respectively audio frequency with in the back the part epiphase in the admin table section of explanation is got in touch.
After the corresponding table of designation data section, be arranged on wherein the admin table section that (01h) to (FFh) 255 part table is provided, consistent with the list index (P-TNO1 to P-TNO255) in the corresponding table of designation data section.In this manual, represent to have the data of " h " with hexadecimal notation.In part table separately, represent the start address of the starting point of certain part (letter mark), represent that the end address of its end point and the mode information (tracking mode) on this part (letter mark) can be recorded in the data area.Here " part " refers to the letter mark zone of the data that the time of writing down in fact continuously is continuous.For example, it refers to the M that uses in Fig. 1 1, M 4 (4)In the letter mark zone of pointing out.
Whether whether the tracking mode information in each part table is to set up about this part, for example, rewrites and to forbid or data are duplicated the information of forbidding, be to be the information of audio-frequency information about it, is the information about single-tone class or stereo class, or the like.
(01h) in the admin table section allows their partial content to be indicated by the list index (P-TNO1 to P-TNO255) in the corresponding table of designation data section to the part table separately of (FFh).That is to say that a certain table (for example, (01h).In fact, in list index, mention the numerical value of certain part table on the byte location that can indicate in P-TOC sector 0 by predetermined processing.) pressed list index P-TNO1, be first audio frequency institute record.In this example, the start address of part table (01h) is the start address on the record position of first audio frequency, and similarly, its end address is in the locational end address of writing down first audio frequency.And tracking mode information is the information about first audio frequency.
Similar to first audio frequency, start address on the record position of second audio frequency and end address and about the second audio frequency tracking mode information be recorded in for second audio frequency by list index P-TNO 2Indicated part table, for example, (02h) in.
Because provide list index up to P-TNO225, so the 255th audio frequency can manage on maximum position by the form of P-TOC by same procedure.
As mentioned above, because the structure of P-TOC sector 0 for example, in the magneto-optic disk in charging apparatus or the playback of dish, can be realized resetting by the method for visiting predetermined audio.
Under the situation of the magneto-optic disk that can write down and reset, because not as in the closely knit dish, the audio region of the data that write down with the form of pit is not so use the corresponding table of above-mentioned designation data section and admin table section.As a result, all writing down " ooh " in each byte.
Utilizing pit writing down in the dish of prerecord type of all audio frequency, and the ROM zone both is being set, but be provided with again in the dish as the mixed type of the posting field in the zone of writing down audio frequency etc. thereon, the corresponding table of above-mentioned designation data section and admin table section is used for the management of the audio frequency in the ROM zone.In the ROM zone, the data of audio frequency etc. have been recorded with the form of pit.But in posting field, being formed such as the recording materials of magneto-optic recording material is processed as film, but so that the desirable data of user can be recorded in the posting field.(3.U-TOC sector)
In turn, will describe U-TOC.The drawn form of a sector (sector 0) of U-TOC of Fig. 6 is writing down here about by the audio frequency of user's record and the data of the management information of the not posting field (dead zone) of record audio again thereon.Sector 1 in U-TOC and each sector of back are chosen wantonly, but its explanation will be omitted.
For example, with when a certain audio recording is on dish 1, the corresponding parts of system controller 11 control such as the device of shaven head 3 so that according to the information that in U-TOC, is write down, the dead zone on the search dish, with audio data recording on the dead zone of being searched for.Equally, when resetting, the corresponding parts of system controller 11 controls so that writing down the audio region that will reset according to the information Recognition of U-TOC on it, obtain the visit to this zone, carry out replay operations thus.
In this sector (sector 0) of the U-TOC shown in Fig. 6, similar to P-TOC, at first be provided with a header.After the header, record about following data by predetermined address location: fabricator's sign indicating number, model sign indicating number, the first audio frequency number (First TNO), the most last audio frequency number (Last TNO), sector user mode, dish sequence number and dish ID (identification code) etc.In addition, in the sector 0 of U-TOC, be provided with the various list index (P-DFA of record, P-EMPTY, P-FRA, P-TNO1 to P-TNO255) zone, these tables are that the respective table as the designation data joint is recorded, so that differentiate that this discriminating is by making these zones and the realization that below the admin table section of describing interrelated by the zone of the audio frequency of user's record and posting field etc. not.
Corresponding with the list index (P-DFA to P-TNO255) in the table of corresponding designation data section, be provided with 255 part tables of from (01h) to (FFh), as the admin table section.In the each several part table, identical with the P-TOC sector 0 shown in Fig. 4, recorded the start address of the starting point of a specific part, the end address of distal point and the pattern information (track part trough pattern) of this part.In addition, in U-TOC sector 0, owing to connect continuously each other, therefore can write down the link information of the part table of start address that expression write down the coupling part and end address by the part of each several part table indication.
As mentioned above, in record and/or replay device shown in Figure 3, even a voice data by discontinuous record, that is to say to be recorded on a plurality of parts that when entering playback time between two parts, this does not influence replay operations.For this reason, but for improving the service efficiency of posting field, audio frequency that the user will write down or similar information can be separated records by a plurality of parts.Therefore, in U-TOC information, be provided with link information, so that (for example) the part table is linked together by will partly showing to be appointed as by the data of giving the each several part table (01h) to (FFh) (in fact, it is by the numeral of a preset program by the breath group position, position in the U-TOC sector 0) coupling.Since with physics recessed/audio frequency of the protruding form record of promptly believing mark or similar information are usually and without separating into a plurality of parts, therefore all link informations in P-TOC covering of the fan 0 are " 00h ", as shown in Figure 5.
In other words, in the admin table section of U-TOC covering of the fan 0, a part table is represented a part.For example, be to determine by the connect together part position of the audio frequency formed of three parts by three part tables that connect together with link information.
The each several part table from (01h) to (FFh) in the admin table section of U-TOC sector 0, partial content is by the list index in the table of corresponding designation data section (P-DFA, P-EMPTY, P-FRA, P-TNO1 to P-TNO255) indication, and is as described below.
List index P-DFA represents an inactive area on the magneto-optic disk 1, and specify a part table by track part slot part indication, described track part slot part is owing to damaging or the track part slot part of this inactive area that similar reason causes, or specifies the topmost submeter in a plurality of part tables.In other words, if there is an invalid part, (01h) any in (FFh) all can be recorded among the list index P-DFA.The initial sum end address of invalid part has been recorded in the part table by list index P-DFA appointment.If also there is another invalid part, another invalid part table will be selected as the link information of this invalid part table, and the expression in a similar manner in this part table of connected invalid part.If not having other invalid coupling part, link information then is (for example) " 00h ", it represents not have invalid coupling part after this part.
List index P-EMPTY represents one of a plurality of unused portion tables part table or the topmost submeter in the admin table section.If there is a unused portion table, (01h) any in (FFh) all can be used as list index P-EMPTY and is recorded.If there are a plurality of unused portion tables, these part tables will be by link information from being specified by the part table beginning of list index P-EMPTY appointment, so that all unused portion tables are coupled in the admin table section in proper order so.
List index P-FRA represents the free space of the write data again that comprises the data erase zone on the magneto-optic disk 1, and specifies in a plurality of part tables one part table or topmost submeter to represent to form the track part slot part of this free space.In other words, if there is a dead zone, (01h) any in (FFh) all can be recorded among the list index P-FRA in advance.In the table by list index P-FRA appointment, the part that forms the dead zone is represented by its initial sum end address.If there are a plurality of part tables, the part table of back is then specified by the link information order, until a part table with link information " (00h) ", so that a plurality of part table links together.
Fig. 7 is used for display management is formed the part of dummy section by part table the synoptic diagram of state.Fig. 7 illustrates a kind of like this state, wherein, when as part (03h), (18h), (1Fh), (2Bh) and (E3h) being the part of dummy section, this state is linked together by table part table (03h), (18h), (1Fh), (2Bh) and the link information (E3h) afterwards of corresponding designation data P-FRA.The mode of managing aforementioned inactive area and unused portion table is identical with the mode of management dummy section.
Under the magneto-optic disk situation, if all being recorded in dish, the voice data such as audio frequency upward and on the dish do not have invalid part, part table (01h) is specified by list index P-FRA.This shows that but whole recording users zone of dish is a posting field (dummy section) not.In this case, because remaining part table (02h) to (FFh) does not use, the each several part table will be specified by link information, connect in such a manner until part table (FFh), promptly part table (02h) is specified by aforesaid list index P-EMPTY, part table (03h) is designated as the link information of part table (02h), and part table (04h) is designated as the link information of part table (03h).In this case, the link information of part table (FFh) is " (00h) ", and nothing connected after it represented this table.
In this case, in part table (01h), the start address of recordable user area tightly is positioned at and reads start address address before as its end address record as its start address record.
In list index P-TNO1 to TNO255, for for the audio frequency of user record on magneto-optic disk 1, the time be positioned at part table the top in the axle a part table be recorded.For example, list index P-TNO1 specify a part or the time be positioned at a part table of a part of a plurality of parts the top in the axle, wherein the data of first audio frequency are recorded.
For example, in the part of first audio recording on dish and when not being divided into a plurality of part, the posting field of first audio frequency be one by the start address of the part table of list index P-TNO1 appointment and the zone of not holding the address to represent.
For example, when second audio frequency was recorded in a plurality of part on the dish dispersedly, each several part was specified according to sequential, to indicate the record position of this audio frequency.In other words, the other parts table is specified by the link information of a part table continuously according to sequential, a described part table the time be positioned at part table the top in the axle by list index P-TNO2 appointment.These part tables link together, until the part table with link information " (00h) ".When second audio region rewrites,, can from disperse part, extract subregion (cantons) music information in the data of resetting second audio frequency or adopting U-TOC sector 0 by the turnover operation of shaven head 3 and magnetic head 6.Therefore, can adopt record data to carry out record effectively.
As mentioned above, the management in a zone on the dish realizes by the information of P-TOC, and audio frequency that is write down in recordable user area and dummy section etc. are then by the information management of U-TOC.
Those TOC information are read out in the memory buffer 13, so that system controller 11 can be with reference to TOC information.(the 4. display operation of position indicator pointer example)
Describe below according to this embodiment of the invention record and/or an example of the display operation of the position indicator pointer 30 in the display unit 20 of replay device.
Fig. 8 (a)-8 (e) illustrates an example of the display operation relevant with coiling replay mode.
At first, for example, under the primary power disconnection (so-called dormant state, power supply this moment feed system controller 11 at least), position indicator pointer does not all illustrate on display unit 20.
In this case, for example, if the key except that stop key in the operating operation importation 19, the state shown in Fig. 8 (a) is by 30 expressions of the position indicator pointer on the display unit 20.In other words, have only a position frame 31 of position indicator pointer 30 at first to be presented on the display unit 20.Position frame 31 comprises (for example) a section.The reference position of dish and terminal position respectively by shown in " beginning " and " end " represent.
In the time that only presents position frame 31, operation and processing that system controller 11 is implemented the TOC information of reading dishes and is stored in the data etc. of the recovery point among the S-RAM 11a.Under the situation that does not obtain TOC information, be not positioned in this device with regard to the proof dish, therefore will continue the only position frame 31 shown in the displayed map 8 (a).
Be placed in this device at dish, and finished after the reading of TOC information of dish, can write down magneto-optic disk if institute's sabot is one, position indicator pointer 30 is shown in (for example) Fig. 8 (b).If the dish that is loaded in this device is a dish of record in advance, having resembled in compact disk, one of them audio frequency, can produce the demonstration shown in Fig. 8 (c) so with the form record of letter mark.
In Fig. 8 (b)-8 (e), the point of reference number 32 expression display segments in this embodiment, is provided with 20 points in the position frame 31.In Fig. 8 (b)-8 (e), black color dots 32 expression luminances, and in fact blank spot 32 is represented and is extinguished state.The total volume that is recorded in a voice data on the dish is by the quantity indication from the luminous point 32 of reference position meter.
In fact starlike mark represents a kind of state of its mid point 32 flickers, and be illustrated in the playback procedure that is installed in the dish in this device the time axle mid-game present replay position.The present replay position of the dish that presents after the reading of just finishing TOC information is represented aforesaid recovery point, for example, is in close proximity to above-mentioned power supply and disconnects a replay position before.
In other words, Fig. 8 (b) illustrates, have with luminous counting/. a voice data of the capacity of the ratio of always counting=14/20 expression is recorded in the magneto-optic disk.In addition, be to glimmer at locational point 32 shown in Fig. 8 (b) according to the recovery point data that are recorded among the S-RAM 11a, represent that thus this position is in recovery point.If audio frequency is but that whole points 32 of 20 sections all are luminous as the data recording of the recording capacity of filling dish.In other words, this show state will with the state consistency shown in Fig. 8 that describes below (c).
In other words, the total volume of dish is represented by 20 points.For example, when but the recording capacity as the audio frequency of data converts the time to, in having 60 minutes the dish of recordable time, constituted (each point corresponding 3 minutes) by 20 points in 60 minutes, and in having 74 minutes the dish of recordable time, constituted (corresponding 3 minutes and 42 seconds of each point) by 20 points in 74 minutes.
On the magneto-optic disk in being installed on this device fully not under the situation of record data, for example, it is 32 all luminous that institute has a little, but the point 32 that is positioned at reference position glimmers.In other words, the scope of not luminous point, for example, by the quantity of the point 32 of Fig. 8 (b) hollow white edge indication, corresponding to the capacity of dummy section.
Show state shown in Fig. 8 (c) is that under the situation of prerecorded dish shows example.Therefore because prerecorded dish does not allow family allowable to write down an audio frequency again, be considered to data and be recorded in this dish and go up and fill its capacity.So shown in Fig. 8 (c), whole 20 points all are luminous, and glimmer corresponding to a point 32 of recovery point.
After dish was placed in this device with arbitrary state of Fig. 8 (b) or Fig. 8 (c), under the situation of not carrying out any operation, the point 32 of tip position glimmered, and shows that thus present replay position is arranged in the primary importance of posting field.
By the arbitrary key on the control operation importation 19, the operation that can reset from the state of Fig. 8 (b) or 8 (c), AMS (automatic music scanning), first forwards/reverse drives (dish) or similar program.According to these operations, the demonstration of flicker position is such mode, and promptly it is towards moved to another point 32 by the arbitrary horizontal direction shown in the arrow among Fig. 8 (d).For this record and/or replay device are under the situation of halted state operation replay Pause key, the point 32 that has glimmered after halted state is set is still flicker, and the flicker of present replay position shows and is not shifted.
For example, reset from the state of Fig. 8 (d), AMS, first forwards/reverse drive or the operation of similar program after, when the operation stop key, with the still flicker of the corresponding point 32 of the dish replay position behind the operation stop key, shown in Fig. 8 (e).Compare with Fig. 8 (d), Fig. 8 (e) illustrates, and point of scintillation 32 moves to an extreme direction, therefore, the state the when state shown in Fig. 8 (e) is considered to operate stop key, simultaneously, for example, upwards carry out in the operation of playback, first forward drive or AMS is being advanced.
Pan Chongfangweizhichu when the operation stop key is recorded in the address date in the dish, and the address date that promptly comes from address decoder is stored among the S-RAM 11a as recovery point.
Below with reference to Fig. 9 (a)-9 (d) show state when tune is recorded on the dish in pack into this record and/or the replay device is described.
As mentioned above, in the record and/or replay device of this embodiment, prerecorded dish is not allowed and is write down new data again, and magneto-optic disk is allowed the audio frequency that record is new.
For example, the hypothetical record operation is from the state of the TOC information that reads dish shown in Fig. 8 (b).In this case, the data instant such as audio frequency that is recorded on the magneto-optic disk is wiped from the pre-recorded data position of being indicated by the flicker position, so that data are written to herein again.The display mode of position indicator pointer 30 is from state shown in Fig. 9 (a) at this moment, and allow that a little 32 flicker position is moving to right of Fig. 9 (b) to an extreme direction, this moving is to form according to new record to the data volume on the magneto-optic disk with the continuation of logging program, thus current record position on the indication disk.
When on magneto-optic disk, continuing record data new recorded data being exceeded to have recorded the scope of data before current logging program begins, shown in Fig. 9 (c), the time point 32 before being positioned at the flicker position of point 32 of indication current location on the axle, promptly among Fig. 9 (c) all to be positioned at the point 32 in left side of point 32 of indication current location all luminous.Subsequently, when stopping logging program when operation is arranged in the stop key of operation input section 19 under state shown in Fig. 9 (c), show state will persist on the display unit 20 shown in Fig. 9 (d).At this moment, be used to manage as the U-TOC information of the tune of data recording to the magneto-optic disk and will be edited.(5. calculating the method for the capacity of current location and recorded data) for the demonstration that realizes position indicator pointer
To be described as embodied in the demonstration of recorded data amount on the disk below and with reference to the demonstration of the current location of the described position indicator pointer of Fig. 8 (a)-9 (d) and be used for the calculating current location of demonstration of position indicator pointer of system controller 11 and the method for recorded capacity.
As mentioned above, record of the present invention and/or replay device can make magneto-optic disk reset pre-recorded disc is reset, and can with audio frequency as data recording to magneto-optic disk.Computing method when at first, writing down employing magneto-optic disk situation with reference to Figure 10.
A. the situation that relates to magneto-optic disk
Figure 10 is the synoptic diagram that is presented on the magneto-optic disk as the audio recording state of data.In this example, the audio recording state shown in the figure is divided into a plurality of parts, and each part has a part table.In Figure 10, the zone correspondence from the reference position that indicated by " " to the terminal position that is indicated by " ends " can write down the summary journal capacity as the whole dish of the audio frequency of data thereon.In Figure 10, represent current position by the position of arrow A indication, for example, the data that are arranged in this position are just handled in memory buffer 13 as record or audio playback data.After this position by the arrow A indication is called " current header ".
When the demonstration of the position indicator pointer 30 that carries out magneto-optic disk, system controller 11 at first calculate current location (recovery point) and the quantity capacity that writes down and not the record (dummy section) capacity each data.
For example, at first, for obtaining current location data, calculate and be contained in a sound group number (referring to Fig. 1) in the scope, this scope is from being arranged in a header (by the arrow B indication) by the part (be called and work as forward part) of the position of the current header of arrow A indication to real current header, the scope between arrow A that Here it is and the B.The numeral that is calculated is made as the PPSG data.The method of calculating the PPSG data is to represent the start address of the part table of working as forward part on the U-TOC to realize by deducting from the address of current header.
Further, calculate from the reference position of dish to final position (be arranged in when forward part before a part) that is between " beginning " and by the arrow B of Figure 10 the sound group number of the scope between the indicated position, the numeral that is calculated is set at the PSG data.The method of calculating the POSG data is to multiply each other by the data that following subtraction is obtained to realize, promptly reduces start address to the end address of the each several part of arrow B from the part table of U-TOC.
The RESUMESG data add to the PPSG data on the POSG data and obtain.The RESUME data are data of representative interior sound group number that exists of (recovery point) scope from reference position to current location.Current location can adopt this computing method to differentiate all the time, even also be like this under the situation that current header is moved by recording/reproducing operation or similar program.The data of storing up the recovery point to the S-RAM 11a in operation after the stop key can adopt the acquisition of RESUMESG data by (for example).
Audio frequency obtains by converting it to sound group sum as the recording capacity of data recording dish thereon, these sound groups are contained in the scope from reference position to the last part (beginning to arrow C) that is positioned at the final position of audio recording when dish is gone up, that is in the scope of the part of indicating by arrow C from " beginning " to Figure 10.Thus obtained data volume is called " RECORDDESG data ".Next step is converted to by the not posting field in will truly coiling and is contained in from calculating not record (dummy section) capacity by the sound group number in the scope of the position of arrow C indication " END " to Figure 10.Thus obtained data are called " FRASG data ".These computing method can be realized by U-TOC information.
Successively, obtain by said method the RESUMESG data (=POSG+PPSG), after RECORDEDSG data and the FRASG data, these data are changed, shown with the form of the point on the position indicator pointer 30 to allow recorded data amount and current location etc.
For example, below with the demonstration example shown in the key diagram 8 (a)-9 (d).Represent point 32 flicker display position (recovery point) RSMP of current location to obtain by following formula:
RSM·P=RESUME·SG/(RECORDED·SG+FRA·SG)
* 20 (20=point 32 sums) ... (1)
From reference position, glimmer with the point 32 of the corresponding position of numerical value of the RSMP that obtains by expression formula (1), current location is shown on the display unit 20 thus.
Represent the demonstration of the point 32 of recorded amount to count RECP by descending column count:
REC·P=RECORDED·SG/(RECORDED·SG+FRA·SG)×20
……(2)
From reference position, the point 32 that the corresponding quantity of numerical value of RECP is counted in the demonstration that obtains with result of calculation thus is luminous, can indicate the current record zone thus.
B. the situation that relates to pre-recorded disc
Dish in being placed in this device is under the situation of pre-recorded disc, and audio frequency can not be as new data records on dish.As a result, for example, in Figure 10, RECORDEDSG be from reference position to terminal position, if there is not RFASG, it will enter equal state.In other words, under the magneto-optic disk situation, can consider audio frequency as data recording, with the memory capacity of filling dish.
Therefore, in pre-recorded disc, when the numerical value of FRASG data is zero, can adopt with magneto-optic disk in identical computing method.Correspondingly, represent the flicker display position (recovery point) of the point 32 of current location to obtain by following formula:
RSM·P=RESUME·SG/RECORDED·SG×20 ……(3)
By the point 32 from reference position of statistics, can indicate current location corresponding to the numerical value of the RSMP that calculates with following formula (3).
Represent the demonstration number of the point 32 of record data capacity to allow that from reference position to terminal position all are 32 luminous, shown in Fig. 8 (c).(handling procedure that 6. is used for the display position pointer)
Below with reference to the handling procedure of flow chart description system controller 11 shown in Figure 11, so that adopt the aforementioned calculation method as shown in Fig. 8 (a)-9 (d), to realize recorded and the indication of current location in position indicator pointer 30.
This process flow diagram only illustrates the process of the demonstration that is used for control position pointer 30, has saved other here and has shown control, and for example the working time of progress and the symbol of mode of operation show in fact simultaneously in representative.This process flow diagram that is used for the demonstration of control position pointer 30 is stored among the ROM of system controller 11.
By this program, if arbitrary key that system controller 11 identifies except that stop key is operated (F101), control will proceed to step F 102.At first, display unit 20 is such control, that is, make position frame 31 resemble shown in Fig. 8 (a) show and read data.Here, read data means the program of carrying out data are read in system controller 11, and described data are such as being stored in P-TOC information and the U-TOC information at least one dish and being stored in recovery point among the S-RAM 11a.Subsequently, system controller 11 differentiates that the dish that is placed in this device is pre-recorded disc or magneto-optic disk, i.e. Pan kind, and this discriminating is according to the P-TOC information of reading in step F 102 or the realization of U-TOC information in step F 103.
If in step F 103, do not read P-TOC or U-TOC information, show that then dish is not placed in this device as yet, control will proceed to step F 116.In step F 116, on display unit 20, continue the demonstration of the position frame 31 in the step F 102, control will be returned original program.
Wherein a kind ofly may be, be pre-recorded disc if identify what place this device in step F 103, and control will proceed to step F 104.In step F 104, calculate the RESUMESG data that are positioned at current location, and in step F 105, calculate the RECORDEDSG data.In step F 106, carry out mathematical operation according to the RESUMESG data of in step F 105, calculating and RECORDEDSG data, to obtain a little 32 flicker position by expression formula (3) expression.Subsequently, control will proceed to step F 107.
In step F 107, the current location on display unit 20 in meeting displayed record data capacity and the position indicator pointer 30.In other words, because the dish that is placed in this device now is a pre-recorded disc, all display dot 32 are all luminous.In addition, according to the point 32 luminous expression current locations that the data of calculating in step F 106 are selected, control will proceed to step F 113.
Another kind may be, is magneto-optic disk if identify the dish that is placed in this device in step F 103, and control will proceed to step F 108, calculates the RESUMESG data of representing current location in this step.Subsequent control will proceed to the step F 109 of calculating the RECORDEDSG data.Further, in this program, the FRASG data will be calculated in step F 110.According to the RESUMESG data of calculating thus, RECORDEDSG data and FRASG data, in step F 111, carry out mathematical operation, thus the flicker position (recovery point) of calculation level 32 and represent counting of record data capacity by formula (1) and (2) expression.Subsequently, control will proceed to step F 112.
In step F 112, glimmer with the corresponding point 32 of the flicker display position RSMP that in step F 111, calculates, counting with the demonstration of record data amount, to put 32 accordingly be luminous to RECP.Subsequently, control will proceed to step F 113.
In step F 113, differentiate whether the stop key of operation input section 19 is operated.If identify in step F 113 and do not operate stop key, control will be returned step F 103, so will continue display position pointer 30 on the display unit 20.For example, in the playback or recording process of dish, point of scintillation 32 is according to the variation of current location displacement, and the quantity of luminous point 32 then changes according to the variation of the data volume of posting field, is operated until stop key.
If identify stop key in step F 113 is to be operated, and control will advance to step F 114, in this step, and the data of the recovery point during the operation stop key, for example Pan address date will be stored among the S-RAM 11a.If this device is in recording status before the operation stop key, before control advances to step F 115, will be edited with the corresponding U-TOC information of audio frequency of extremely coiling as the data new record.
In step F 115, the process of the demonstration of the position indicator pointer 30 when being used to continue to operate stop key will be carried out, and control after this will be back to (for example) master routine.
Then, if the power switch that is arranged in operation input section 19 by operation turn-offs the power supply of this device, promptly enter dormant state, for example, the demonstration of position indicator pointer 30 will stop with other demonstration.The data of the recovery point during the operation stop key will be stored and remain among the S-RAM 11a, as long as the words that dish does not take out from this device.(the 7. various conversion examples of the display operation of position indicator pointer)
Several conversion examples of the display operation of position indicator pointer 30 are described with reference to Figure 12 (a)-16 (b) below.
Figure 12 (a)-12 (d) demonstrates when being recorded in audio frequency on the dish by the display format of another display operation example playback time.Represent with same reference numeral with the identical part that display format in the replay mode of previous embodiment among Fig. 8 (a)-8 (e) relates to.Here omit its detailed description.
At first, similar to the display operation of Fig. 8 (a)-8 (e), if be to be in dormant state in Figure 12 (a)-12 (e), position indicator pointer 20 can not show on display unit 20.For example, if operate the key except that stop key in the operation part 19 that is located in this device, to on the part of demonstration 20, only demonstrate position frame 31, shown in Figure 12 (a), in this process, the P-TOC of dish or U-TOC information and recovery point data (if these data have deposited among the S-RAM 11a) will be read in the system controller 11.The judgement dish is not placed in this device if system controller 11 is not owing to read to TOC information, will only continue display position frame 31 on the display unit 20.
If the judgement dish has been placed in this device, and run through that the judgement dish is a magneto-optic disk after the P-TOC of dish or the U-TOC information, will produce the display format shown in (for example) Figure 12 (b) so.
In Figure 12 (b), correspondingly placing the inverted triangle point 33 of each point 32 tops as 20 display segments is the current location display dot that are used to indicate current location.Blank current location display dot 33 shows extinguishes state.In other words, in this shows example,, be luminous with being stored to the point 32 that data capacity on the dish accounts for the corresponding quantity of ratio of whole memory capacity if finished the P-TOC of dish or the reading of U-TOC information.In addition, recovery point is current location display dot 33 luminous indications of having been selected by the recovery point data by making.
If judge that the dish be placed in this device is a pre-recorded disc, all 20 points 32 are all luminous, such shown in Fig. 8 (c).Similarly, after dish is placed in this device, if operation input section 19 is not operated, be positioned at the current location display dot 33 of uppermost position, promptly, the point 33 that is positioned at Figure 12 (b)-12 (d) leftmost side is luminous, indicates current location thus and is in primary importance in the zone of recorded data.
From above-mentioned state, according to operation to correspondent button, if reset, the running of AMS, the driving of first forwards/reverse or similar program, current location display dot 33 will become from luminance and extinguish state according to operation or setting program, shown in Figure 12 (c), indicate a state that current location is variable thus.Then, along with the variation of current location, current location display dot 33 moves towards the direction of " beginning " or " end ", and puts 33 and glimmer.At the operation replay Pause key this device is become under the situation of halted state, the current location display dot of just glimmering when the operation suspension key continues to keep flicker, and in the current position any flicker displacement does not take place.
For example, after the operation of having carried out playback, AMS, the driving of first forwards/reverse or similar program from state shown in Figure 12 (c), if operation stop key, the corresponding current location display dot 33 of replay position during with the operation stop key will change luminous show state into from blink states, shown in Figure 12 (d).
Similarly, the relevant data of replay position during with the operation stop key, for example, the disk address data will be stored in the new recovery point of S-RAM 11a.
Describe according to another display operation example show state during as the data recording audio frequency on dish with reference to Figure 13 (a)-13 (f) below.
For example, if the record of the audio frequency that carries out is that state begins shown in the P-TOC that writes dish or Figure 12 after the U-TOC (b) from finishing on dish, current location display dot 33 will become the blink states shown in Figure 13 (a), indicate a state that current state is variable thus.In addition, also glimmer with the corresponding point 32 of the current location display dot 33 of flicker, the record of indicating an audio frequency thus is the state that begins of position from then on.In this case, can carry out aforesaid rewriting logging program, it is on the old audio frequency that one of them new tune is recorded in the data that are recorded on the dish.
If the record of audio frequency from then on state is proceeded, the current location display dot 33 of flicker will move to " end " direction, shown in Figure 13 (b).Simultaneously, glimmer with record start position to the corresponding a plurality of points 32 of the current location shown in Figure 13 (b).Scope by point of scintillation 32 indications is rewritten part corresponding to one.
If writing down the program of new audio frequency proceeds, so that record is when exceeding the scope that recorded audio frequency before the current record program begins or zone, the blank spot 32 that is present between the sink node of the flicker position of the current location display dot 33 of representing the current record position and the luminous point 32 shown in Figure 13 (b) will become blink states successively, shown in Figure 13 (c).This posting field of representing record audio is by writing down a kind of state that new audio frequency is expanded.
If by the operation stop key logging program is stopped from state shown in Figure 13 (c), current location display dot 33 will change luminance into from blink states, shown in Figure 13 (d).Simultaneously, the scope that has write down new audio frequency is indicated by making a plurality of points 32 be in blink states.In this case, edit the U-TOC information that is used to manage the voice data on dish of new record.After the edit routine of finishing U-TOC information, institute between the point 32 of the end of the point 32 of the stem of a plurality of points 32 that run through the current record program and these points 32 has a little 32 will change luminance into from blink states, shown in Figure 13 (e), the indication zone of wherein having write down new audio frequency is decided to be the posting field among the U-TOC thus.
If begin to carry out playback programs from above-mentioned state by the operation replay key, with the reference position of aforementioned logging program be that the corresponding current location display dot 33 of REC recovery point will become blink states, just look like to move, shown in Figure 13 (f) from final entry point to the demonstration of starting point.Simultaneously, corresponding with current replay position, current location display dot 33 progressively is transformed into the flicker show state.
According to the display packing shown in Figure 13 (a)-13 (f), because the state of recording capacity and the state of current location are independent indications, especially carrying out rewriting when record of new audio recording to the audio frequency that has write down, therefore by changing the show state of the point shown in Figure 13 (b)-13 (d), can easily learn the wherein scope of new record audio frequency.
In the control procedure of aforesaid display operation, system controller 11 can be by mode displayed record capacity and the current location identical with previous embodiment.For making the point 32 in the new record audiorange be transformed into the blink states shown in Figure 13 (b)-13 (d), the reference position of new record audio frequency as REC recovery point data storage in S-RAM or similar memory device.Perhaps establish a storer that is used to store the REC recovery point in addition.Calculate from the position of the REC recovery point that write down to the sound group number of current location, and by converse routine result of calculation is converted to and to count.Point 32 can be according to result's flicker of this mathematical operation.
Below with reference to Figure 14 (a) and 14 (b) another display operation example is described.
For example, suppose the magneto-optic disk that has recordable time different, for example be 60 or 74 minutes writing time.For example, but but, can identify the recordable time that the dish that is placed in this device has 60 minutes recordable time or has 74 minutes according to by recording user zone start address RSTA and the capacity that has been recorded in the recording user zone that the data of reading start address ROA among the P-TOC obtain.
In the procedure for displaying shown in Fig. 8 (a)-8 (e) or Fig. 9 (a)-9 (d), the hop count of point 32 can change according to recordable difference, shown in Figure 14 (a) and 14 (b).That is to say, specifically, be 60 minutes dish if institute's sabot is a kind of recordable time, can adopt the display mode with predetermined point 32 numbers shown in Figure 14 (a), is 20 points 32 in the case.If institute's sabot is a kind of recordable time is 74 minutes dish, can increase the hop count that is used to show, for example display dot 32a.Adopt above-mentioned display mode, the user can know at an easy rate that being placed in the magneto-optic disk that is used in this record and/or the replay device to write down or resets is that recordable time is the dish that 60 minutes dish or recordable time are 74 minutes.Choose wantonly at these routine mid point 32 numbers, institute's sabot can have and is different from 60 or 74 minutes recordable time.
In this display mode, if pre-recorded disc is placed in this device, state shown in Figure 14 (a) or 14 (b) can show according to total reproduction time of pre-recorded disc.Perhaps, the display mode shown in Figure 14 (a) may only be arranged, irrelevant with total reproduction time.
The indicating mode that illustrates on display unit 20 is not limited to the form in upright arrangement shown in Figure 14 (a) and 14 (b), also can be the so-called spiral form shown in Figure 15 (a) and 15 (b).
For example, Figure 15 (a) and 15 (b) show the demonstration example of the magneto-optic disk that is respectively equipped with the recordable time with 60 and 70 minutes.In Figure 15 (a) and 15 (b), spiral light-emitting section 34 designation datas can be in the summary journal time of disc recording.If magneto-optic disk is a kind of dish with recordable time of 60 minutes, then will show, shown in Figure 15 (a) by a circle spiral.If magneto-optic disk is a kind of dish with recordable time of 74 minutes,, increase a bar 34a who is used to show, shown in Figure 15 (b) according to the difference of 60 and 74 minutes recordable times.For example, according to the data volume of institute's record audio, be luminous along the point 32 of bar 34 and 34a, indicate the point 32 of current location to glimmer simultaneously.
According to said method, position indicator pointer shows with spiral form.As a result, can find out more easily with respect to the current location of total dish with respect to data recording time of total recordable time.Especially, because 60 minutes time span of a circle bar 34 correspondences can be learnt current location and data recording time with real-time mode at an easy rate, just look the Long pointer judgement time of clock and watch as sight.
Similarly, in this embodiment, if pre-recorded disc has been placed in this device, by the indication shown in the Figure 15 (a) that presents on the display unit 20, the user can learn the summary journal time on this pre-recorded disc.
In addition, shown in Figure 16 (a) and 16 (b), the rotary display part 35 that is used for the rotation status of display disc can be arranged at the center of spirality position indicator pointer.In this example, the demonstration of rotating part 35 can be according to the operation change of playback, record, time-out, the driving of first forwards/reverse or similar program, so that the user can learn the mode of operation of this device at an easy rate by visual image.Moreover the shape by changing spiral display part 35 etc. can be indicated the kind that is placed in the dish in this device, that is, and and any in magneto-optic disk, pre-recorded disc or the mixing pan.
In this embodiment, the various display modes of position indicator pointer 30 are not limited to the structure shown in each figure, but can revise, if the identifiable words of recorded data capacity and current location.
Further, in this embodiment, only this record and/or replay device have been described as an example.But according to its function, display mode of the present invention is also put device applicable to unirecord device and substance.In addition, the present invention also is not limited to use the record and/or the replay device of dish type recording medium, and it also can be used for having the device of the recording medium of other kind.
Be to show and the purpose of explanation, more than the preferred embodiments of the present invention are described.But this does not also mean that to be whole or the present invention is limited to disclosed concrete form according to top instruction or do some from the present invention's practice and improve and conversion is possible.Selection and description to embodiment are in order to explain principle of the present invention and practical application thereof, so that those of ordinary skill in the art can realize the present invention with various embodiments and the various improved forms that are suitable for application-specific.This means that scope of the present invention should be limited by claims and equivalent thereof.

Claims (17)

1. the record of recording medium and/or replay device are writing down the record that is used for the data of controlling recording on data recording area on this medium, the management data of recorded operation that perhaps writes down and/or reset, and described device comprises:
Light head device is used for the record of the data on recording medium, perhaps recorded reading from the recording medium;
Display device; It is characterized in that also comprising:
Arithmetic operating equipment is used to utilize the management data of being read from recording medium by described light head device, and the record or the replay position of the data on the data recording area that is recorded in recording medium carried out arithmetical operation; With
Display control apparatus, be used to allow described display device, according to the management data of reading from described light head device, the reading of the whole recording capacity of display recording medium posting field, and be used to allow described display device, by data, carry out position display according to expression from the resulting described position of arithmetical operation of described arithmetic operating equipment.
2. according to the record and/or the replay device of the described recording medium of claim 1, it is characterized in that, described display device comprises, expression shows segmentation by first display segment and second of the position of described light head device current scanline recording medium, described first display segment is different from described second display segment in form, and described display control apparatus is allowing described display device, with a series of described many first display segments, the whole recording capacity of the data recording area of display recording medium.
3. according to the record and/or the replay device of the described recording medium of claim 2, it is characterized in that, described arithmetic operating equipment is according to the management data of reading from described light head device, produce the data that expression has been recorded in the amount of the data on the recording medium, and described display control apparatus allows described display device, with a series of described many first display segments, the demonstration expression is provided by described arithmetic operating equipment, the data of the amount of the data that write down.
4. according to the record and/or the replay device of the described recording medium of claim 1, it is characterized in that described display control apparatus produces by equation
The demonstration control data K1 that K1=(I/m) * n represents, be used to utilize described many first display segments of described display device, show that expression has been recorded in the data of the amount of the data on the recording medium, n is the number of described first display segment of described display device in the formula, m is that the whole data recording capacity of recording medium and I are the quantity that has been recorded in the data on the data recording area of recording medium.
5. according to the record and/or the replay device of the described recording medium of claim 1, it is characterized in that described display control apparatus produces by equation
The demonstration control data K2 that K2=(j/m) * n represents, be used to utilize described many first display segments of described display device, the data that show the position that expression record or replay operations stop, n is the number of described first display segment of described display device in the formula, m is that the whole data recording capacity of recording medium and j stop from the tip position of the data recording area of recording medium to described head equipment writing down or the quantity of the data of the position of replay operations.
6. according to the record and/or the replay device of the described recording medium of claim 1, it is characterized in that described display control apparatus produces by equation
The demonstration control data K1 that K1=(I/m) * n represents is used to utilize described many first display segments of described display device, shows that expression has been recorded in the quantity data of the data on the recording medium, and produces by equation
The demonstration control data K2 that K2=(j/m) * n represents, be used to utilize described many first display segments of described display device, the data that show the position that expression record or replay operations have stopped, n is the number of described first display segment of described display device in the formula, m is the capacity that is not recorded the data area of recording medium, I has been recorded in the quantity of the data in the data recording area of recording medium and j to stop from the tip position of the data recording area of recording medium to described head equipment writing down or the quantity of the data of replay operations position.
7. according to the record and/or the replay device of the described recording medium of claim 1, it is characterized in that, described device also comprises memory device, be used for storage when writing down and/or replay operations when stopping, with the relevant information in the position of described light head device on recording medium, described arithmetic operating equipment, according to from described memory device with the relevant information in the position of described light head device on recording medium, produce the information relevant with described position.
8. according to the record and/or the replay device of the described recording medium of claim 1, it is characterized in that also comprising:
Record and/or playback opertaing device, be used for by described head equipment with data discrete be recorded in recording medium and be used for according to management data, read the data that are recorded in discretely on the recording medium with the form of continuous data.
9. as record and/or replay device, it is characterized in that described display control apparatus produces by equation according to the desired recording medium of claim 8
The demonstration control data K1 that K1=(I/m) * n represents, be used to utilize described many first display segments of described display device, the quantity data that expression has been recorded in the data on the recording medium shows, n is the number of described first display segment of described display device in the formula, m is that the whole data recording capacity of recording medium and I are the quantity that has been recorded in the data on the data recording area of recording medium.
10. according to the record and/or the replay device of the described recording medium of claim 9, it is characterized in that, described display device comprises many first display segments and second display segment of expression by the position of described light head device current scanline recording medium, described first display segment is different from described second display segment in form, and described display control apparatus allows described display device, with a series of described many first display segments, the whole recording capacity of the data recording area of display recording medium.
11. record and/or replay device according to the described recording medium of claim 8 is characterized in that, described display control apparatus produces by equation
The demonstration control data K2 that K2=(j/m) * n represents, be used to utilize described many first display segments of described display device, the data that show the position that expression record or replay operations stop, n is the number of described first display segment of described display device in the formula, m is that the whole data recording capacity of recording medium and j stop from the tip position of the data recording area of recording medium to described light head device writing down or the quantity of the data of the position of replay operations.
12. record and/or replay device according to the described recording medium of claim 11, it is characterized in that, described device also comprises memory device, be used for storage when writing down and/or replay operations when stopping, with the relevant address information in the position of described light head device on recording medium, described arithmetic operating equipment, according to from described memory device with the relevant address information in the position of described head equipment on recording medium, produce the information relevant with described position.
13. record and/or replay device according to the described recording medium of claim 8, it is characterized in that, described display device comprises, expression is by many first display segments and second display segment of the position of described light head device current scanline recording medium, described first display segment is different from described second display segment in form, and described display control apparatus allows described display device, with a series of described many first display segments, the whole recording capacity of the data recording area of display recording medium.
14. record and/or replay device according to the described recording medium of claim 13, it is characterized in that, described device further comprises identification equipment, be used to discern the kind of the recording medium of incorporating said apparatus, and described display control apparatus allows described display device, if from the output signal representative of described identification equipment unique recording medium of resetting, whole recording capacity by described many first display segment display recording mediums, and according to from the relevant data in the described position of described arithmetic operating equipment, by described second display segment, show the position of the recording medium of described bare headed portion device scan.
15. record and/or replay device according to the described recording medium of claim 14, it is characterized in that, described display control apparatus allows described display device, if output signal representative recordable recording medium from described identification equipment, by described many first display segments, show the quantity that has been recorded in the data on the recording medium, and according to from the relevant data in the described position of described arithmetic operating equipment, by described second display segment, show position by the recording medium of described light head device scanning.
16. record and/or replay device according to the described recording medium of claim 8, it is characterized in that, described device further comprises another arithmetic operating equipment, be used for management data according to the recording medium of reading from described head equipment, the quantity of calculating recordable data in the data recording area of recording medium, and described display control apparatus makes described display device basis show from the quantity of the recordable data of this another arithmetic operating equipment.
17. record and/or replay device according to the described recording medium of claim 8 is characterized in that, described display control apparatus produces by equation
The demonstration control data K1 that K1=(I/m) * n represents is used to utilize described many first display segments of described display device, and the quantity data that expression has been recorded in the data on the recording medium shows and produces by equation
The demonstration control data K2 that K2=(j/m) * n represents, be used to utilize described many first display segments of described display device, the data of representing the position that record or replay operations stop are shown, n is the number of described first display segment of described display device in the formula, m is the capacity that is not recorded the data area of recording medium, and I is that the quantity of the data that write down on the data recording area of recording medium and j stop from the tip position of the data recording area of recording medium to described head equipment writing down or the quantity of the data of the position of replay operations.
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KR100351773B1 (en) 2002-12-12
DE69518951T2 (en) 2001-04-05
JPH07326175A (en) 1995-12-12
EP0686974A1 (en) 1995-12-13
DE69518951D1 (en) 2000-11-02
US5701282A (en) 1997-12-23
US5617383A (en) 1997-04-01
EP0686974B1 (en) 2000-09-27
CN1144962A (en) 1997-03-12

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